After a decade of testing PCs, routers, and home networks, I know what causes slow speeds and how to optimize your internet.

Are you getting the internet speed you’re paying for? Should you blame a slow connection on your Wi-Fi router or internet provider? Can your internet handle things like online gaming or livestreaming?

The best way to tell if you’re getting what you’re paying for each month is by running a simple internet speed test. We'll show you how. Joe Supan Senior Writer Joe Supan is a senior writer for CNET ...